Transform WordPress configuration snippets into a complete plugin

[Copilot]

Overview

This PR transforms the WordPress configuration suggestions in the repository into a fully functional WordPress plugin that enhances security by disabling file editing and modifications in the WordPress admin area.

Changes

Created disallow-file-edit.php

A complete WordPress plugin file that includes:

• Plugin Headers: Proper WordPress plugin metadata including name, description, version, author information, and GPL v2 license
• Security Check: Prevents direct file access by checking for the WPINC constant
• Core Functionality: Implements a function that defines both DISALLOW_FILE_EDIT and DISALLOW_FILE_MODS constants
• WordPress Integration: Uses the init action hook as demonstrated in the original configuration examples
• Safe Constant Definition: Includes conditional checks to prevent redefining constants if they're already set elsewhere

Updated README.md

Enhanced the documentation to provide:

• Clear description of the plugin and its security features
• Step-by-step installation instructions for WordPress users
• Detailed explanation of what each constant does
• The original configuration methods preserved as alternative approaches for users who prefer not to use a plugin
• License information

Features

The plugin provides the following security enhancements:

• ✅ Disables the plugin and theme file editor in WordPress admin (DISALLOW_FILE_EDIT)
• ✅ Prevents file modifications including plugin/theme installation and updates (DISALLOW_FILE_MODS)
• ✅ Zero configuration required - works immediately upon activation
• ✅ Lightweight with minimal footprint
• ✅ Follows WordPress plugin development best practices

Installation

Users can now install this as a standard WordPress plugin by uploading disallow-file-edit.php to their /wp-content/plugins/disallow-file-edit/ directory and activating it through the WordPress admin interface.

Closes #1

Original prompt

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This section details on the original issue you should resolve

<issue_title>transform them into a WordPress plugin</issue_title>
<issue_description>Employ the provided WordPress configuration suggestions and transform them into a WordPress plugin.</issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes #1

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[TibetOS]

This is very good, but we need more functionality to get this done